Window structure



March 10, 1953 A. ZITOMER WINDOW STRUCTURE Filed Feb. 13, 1947 2SHEETS.SHEET 1 Has BY M W M n F. H 2 m T A March 10, 1953 A. ZITOMER2,630,891

WINDOW STRUCTURE Filed Feb. 15, 1947 2 SHEETS-SHEET 2 INVENTOIZ Has 2ramsz BY A TTOQ/YEYS Patented Mar. 10, 1953 UNITED STATES PATENT OFFICEWINDOW STRUCTURE Abe Zitomer, Milwaukee, Wis.

Application February 13, 1947, Serial No. 728,229

13 Claims.

This invention relates to improvements in window structures, It hasparticular reference to storm sash but the entire structure, orindividual features thereof, may also be used interiorly of the windowframe to provide the main sash.

It is the object of the invention to provide a window structure whichwill be so weathertight in use as to be practically hermetically sealed;which provides for sliding sash without requiring window weights or thelike; from which the individual sash may be removed for washing orinterchange with screen sash with the utmost ease; in which the sashguides have the appearance of a metallic frame but are in factfabricated from extruded sections attached individually to a permanentwooden frame or the like; and to make the organization adaptable to anyexisting window frame structure.

Other objects of the invention can best be explained in connection withthe following disclosure thereof.

In the drawings:

Fig. 1 is a view in perspective showing the exterior appearance of myimproved window structure as applied to a building.

Fig. 2 is an enlarged detail view in transverse section through thebottom of the lower sash and through an adjustable sill provided as apart of the invention.

Fig. 3 is a detail view in transverse section through the lower rail ofthe upper sash and the upper rail of the lower sash.

Fig. 4 is a detail view in transverse section through one of the sashguides and the top of one of the sash.

Fig. 5 is an assembly view in longitudinal section through the windowshown in Fig. 1 on a larger scale than that of Fig. 1 but a smallerscale than that used in Figs. 2 to 4.

Fig. 6 is an assembly view in transverse section through the windowstructure of Fig. 1.

Fig. '7 is a fragmentary detail view on an enlarged scale through thecorner of one of the sash, with one of the side rails broken away toshow the interior.

Fig. 8 is a fragmentary detail view in perspective showing sections ofthe sash and one of the sash guides.

Fig. 9 is a fragmentary detail view in section through the sash and theother sash guides.

Fig. 10 is an enlarged fragmentary detail view partially in elevationand partially in section showing a sash guide illustrated in Fig. 9 andits relation to the sash.

In the embodiment in which the invention is illustrated, it isparticularly designed for applicalid 2 tion to existing window frames.The generally conventional frame shown at I in Figs. 1, 5 and 6 provideschannels or ways for the conventional double-hung sash which includesupper sash i2 and lower sash 3. The frame comprises a sill at 4 andexternal facing trim 5.

To such a frame I have applied a set of sash guides 6, l and 8 which,assembled as illustrated in Fig. 1, have the appearance of constitutinga frame but are, in fact, separate pieces, having no connection exceptsuch as is derived from their individual mounting on the external finish5 of the wooden frame shown.

The sash guide members 6, 'l and 8 are preferably all made of extrudedsections. Members 6 and i may be identical in cross section as shown inFigs. 4 and 8. Each includes a flange 9 of substantial width whichoverlies the face of the frame trim member 5 and is individually screwedthereto. To the flange 9 is integrally connected the base Web In fromwhich projects the flanges ll, [2, l3 in which the sash move. From theinner edge of the base web it! extends a short flange [4 preferablyparallel to flange 9, the end of which abuts the bottom or inner edge ofthe trim member 5, as shown in Fig. 5 and Fig. 6.

The guide member 8, at the opposite side of the window opening, is ofmodified construction. It has at a flange substantially identical inwidth and form to the flange 9. Like flange 9 it is screwed at intervalsto the window trim or facing 5. Its base web I05 corresponds in functionto the base web 10 but is set back to dispense completely with the shortflange [4. The flanges H0, I26 :and I30 are correspondingly elongated toprovide deeper ways than those shown in Fig. 4. In each such way isplaced a channel-shaped slide l5 which extends the full height of thewindow and is biased laterally by a convoluted spring I6 which likewiseextends the full height of the window, this arrangement being best shownin Figs. 9 and 10.

The sash are preferably also made of extruded metal sect-ions. Thesesections may be uniform around three sides of each sash, using theconstruction shown at H3 in Figs. 2, 4, 8 and 9. Each of the sash railsthus formed is channel-shaped in cross section and provided interiorlywith an integral rib is against which the glass 20 seats, as also shownin Fig. *7. The extruded ra-ils are mitered together at their cornersand the corner is spanned by a gusset 2| engaged from both sides by aboss 22 produced by punching inwardly on the metal walls of the hollowrails l8. This holds the rails tightly together at the corner and theymay also be soldered or brazed if Y desired.

The top rail 24 of the lower sash and the bottom rail 24 of the uppersash (Fig. 3) are identical with each other but different from the railsis already described. Each is extruded to provide integrally aWeatherstripping flange 25, the respective flanges passing each other inthe closed position of the sash and each having face bearing con-tactwith the inner surface of the rail of the opposite sash as shown in Fig;3.

In order to facilitate fitting the sash to any conventional windowopening, while allowing for inevitable differences in dimension, Iprovide a special adjustable sill or seat best shown in Figs.

2 and 8 and designated generically by reference:

the composite sill 2 6 may be so fixed asto height that the seat 29:will, in each installation, receive the lower sash when theeatherstripping flanges 25 are engaged substantially as shown in Fig. 3.

The thickness of the suppl emental-sili rrieznber 28, and its width. aresubstantially the thick.-- nessand width of-the'sashr Consequently, theends of the sill '25 arereceived into thew-aysot the sash guides s andBandare detachable therefrom in the same: manner as the sash, as willpresently be described. The flange 28 must necessarily be out off topermit the ends of thesill 26' to be receivedinto suchways,

Whether the sash: asaherein described are:

glazed or fitted with screen-cloth, their weight is extremely slightascompared with conven ticnal window structures. The extruded metal ispreferably aluminum or magnesium alloys and: its mass is small.-Consequently no sash balances of any kind are required; Thesash-movesfreely; up and down in the ways'provided by the sash guides 6 ands and:are held by the bias or their respective springs 46in any position ofadjust-'- ment.

The beaded edges of the flanges H, I2, Band Ht, 129, see fit very.closely to the rails of thesash and the channels IE-which bear againstthe sides or the sash under the thrust of springs i6 hold the sashtightly'engaged" at their edges to provide substantially hermeticsealing;

Yet the sash may be removedalmost instantly by pressing it to theriglrt-to dis-placeits :associated thrust channel 1-5 by compressing theconvoluted spring 56 until the leithand side of the sash clears thewayin which it slides in the guide member 6. Thereupon the sash may belifted bodily from its guides, the bead of flanges H0,

I20, I39 restraining the channels from escaping from the righthand waysinguide member'fi when the sash isremoved. As the sash are normallypositioned forslidi'ngmovement in their respective ways," they arecentered in the window opening, there being approximately the sameportion of the sash 'conceale'd behind the flange H of guide member 6 asis concealed behind the flange i3!) of guide member- 8. The ability ofthe spring biased channel 15 to yield when the iii) 4 sash is thrust tothe right must be such that the lef-thand margin of the sash willcompletely clear flange H.

Upon withdrawal of the sash, the channel [5 moves out under thrust ofspring 15 to the full limit permitted by the marginal beads. It will benoted from Fig. 9 that the beads are tapered to guide the sash as it isbeing reintroduced into the way in which it slides.

If the main window sash 2 and 3 meet at a point such as to precludemanipulation of the lower sash in the manner above described, it is onlynecessary to raise the lower sash slightly and then remove the sill unit26 by impressing it to the right and withdrawing its lefthand end. Thelower storm sash may then be lowered to clair the main window sash 2completely and may readily be withdrawn through the opening provided byraising the main lower sash 3. The upper storm sash may then be loweredto the same level and removed through the same openmg. sash atthekitchen sink, if desired, or to replace them with screen sash withequal facility. Yet the assembled window structure is moreweathertightthan the average stormsash equipped-with Weatherstripping.

Due to the use of. standardized extruded sections, my improved windowmay be applied to practically any conventional window. regardless of itssize. The members ii, l ands may. be out and mitered on the job andsimplyscrewed in place, giving the appearance, however, when assem'bled,. of a complete metal'frame.

The slidable sash used. in the. guides may likewise be assembledon thejob if so required tofit an odd shaped window, although. it is normallyintended that these be manufactured in stated sizes.

Not only does the adjustable sill make possible the application of myimprovedwindow structure in windows having minor variations indimensions, but it will also be noted thatthe screwing of the guidemembers- 6,1; 8-to the windowirame trim permits my guide members to'bemounted in accurate relationship to each other,

regardless of inaccuracies in. the spacing,- or lack of parallel of thesides of the wooden: frame;

I claim: 1. In a windowstructure; a pair of spacedwindow sash guideseach comprising mounting means in combination with a. pair of spacedflanges, and

asashwider than the-spacing between said guides whereby to be mountedwithin said flanges for lateral confinement thereby, the'flangesof oneof said guides being provided with marginal beads which saidspringcomprises aconvoluted spring strip extending substantially the length ofthe spacebetween the flanges.

3. The combination with opposed sash guide members each provided withinturned flanges withbeaded extremities providing ways in which the sashis slidable, of a bearing plate in oneof said ways and a springconfinedin the-way lastmentioned behind said bearing plateand'providi'n'g -thrust in a'direction to engagea sash in Thismalres itpossible to wash the glazed said way, together with a sill memberspanning the space between said sash guide members, said sill memberbeing slidably engaged at its ends within the respective ways under thethrust of said spring.

4. The device of claim 3 in which said sill member comprises verticallyslidable parts and screw clamps for holding said parts in relativeadjustment.

5. The device of claim 3 in which said sill member is provided with asash receiving shoulder along its upper margin and with weatherstripping along its lower margin.

6. In a window structure, the combination with separately fabricatedopposing sash guide members independently applicable to existing win dowframe structures whereby said members are independently supported innatural alignment by said window frame, said sash guide members beingeach provided with a plurality of mutually spaced flanges affording apair of opposed sash guide ways, of separate sash reciprocable in therespective ways and provided with Weatherstripping flanges normallyinterlocked in the closed position of the sash, means for adjustablypredetermining said closed position, said means comprising a detachablesill slidably engaged at its ends in the opposed ways of the respectivesash guide members and having one part with a sash receiving uppermargin and another part slidable respecting the first part and adaptedto engage the permanent sill of the window frame, together with a clampadjustably connecting said parts, and lateral thrust means biasedagainst said sash and against said sill whereby said sash and sill areheld snug in said ways regardless of their position.

7. The device of claim 6 in which one of the parts comprises adownwardly opening channel and the other comprises a slotted platetelescopically slidable within the channel, said clamp comprising a boltextending across the channel and through the slot.

8. A metal window structure comprising in combination first and secondlaterally spaced guide members each provided with a mounting and faceflange, a base element and guide flanges projecting toward each otherand providing ways, a sash wider than the spacing between said guidemembers and slidable in said ways between said flanges whereby to befirmly laterally supported by said flanges in all positions of the sash,a third guide member spanning the space between the first and secondguide members at the top of the window, the several guide members havingmitered corners and the third guide member having flanges correspondingin position to the flanges of the first and second guide members tocontinue the ways across the window, the guide fianges of one of theguide members first mentioned being provided with beads to definechannel width between flanges and against which the sash laterallybears, flat surfaced thrust elements wholly within and slidable in theways between the flanges last mentioned to and from said beads, and aconvoluted strip spring confined behind said elements throughout thelength of the guide member last mentioned and biasing said elementstoward said beads whereby movement of the sash within said bead channelagainst the bias of the strip spring will compress the spring as thesash is firmly guided in the bead channel.

9. The device set forth in claim 8 in which the respective guide memberscomprise integral extruded sections and are provided with individualmountings.

10. The combination set forth in claim 8 in further combination with adetachable auxiliary sill having its ends slidably engaged in the waysof opposite guide members first mentioned.

11. The combination set forth in claim 8 in further combination with adetachable auxiliary sill having its ends slidably engaged in the waysof opposite guide members first mentioned, together with upper and lowersash slidable in the ways of the respective first and second guidemembers and together fitting the space between the third guide memberand said auxiliary sill, said first and second sash having Weatherstripflanges interlocking centrally of the window in the closed position ofsaid sash.

12. The combination set forth in claim 8 in further combination with adetachable auxiliary sill having its ends slidably engaged in the waysof opposite guide members first mentioned, together with upper and lowersash slidable in the ways of the respective first and second guidemembers and together fitting the space between the third guide memberand said auxiliary sill, said first and second sash having Weatherstripflanges interlocking centrally of the window in the closed position ofsaid sash, said auxiliary sill comprising relatively slidable parts, anda clamp connecting such parts in adjusted relation to engage the lowersash when the weatherstripping flanges of the sash are interlocked asaforesaid.

13. A window structure providing ways for sliding sash, said structurecomprising separately fabricated and independently mountable top andside members each of which is channeled to provide a way and each ofwhich comprises a face flange independently applicable to a window framewhereby each of said members is independently supported by the frameand. is held by the frame in alignment with the other said member, therespective side members having flanges ofiset within the facing andproviding said sash channels, the flanges of one of said side membershaving marginal beads to define chan-- nel width, together with a flatthrust strip confined between said flanges and within said beads, andresilient means biasing said strip outwardly toward said beads.

ABE ZITOMER.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 530,660 Schairer Dec. 11, 1894551,523 Bagshawe Dec. 17, 1895 658,098 Weber Sept. 18, 1900 1,185,783Edwards June 6, 1916 1,287,409 Paige Dec. 10, 1918 1,650,640 MichaelsNov. 29, 1927 1,652,607 Campbell Dec. 13, 1927 1,688,231 Fisher Oct. 16,1928 2,077,056 Plym Apr. 13, 1937 2,156,964 Biddle May 2, 1939 2,262,670Ensminger Nov. 11, 1941 2,298,406 Miller -1 Oct. 13, 1942 2,303,129Kurtz Nov. 24, 1942 2,430,772 Kammerer Nov. 11, 1947 2,467,511 Van FleetApr. 19, 1949 2,560,752 Vass July 17, 1951 FOREIGN PATENTS NumberCountry Date 445,445 Great Britain Oct. 21, 1936

